SF and Cyberspace

I just started a research on the topic which SF Stories/Books deal with Cyberspace, Virtual Reality, Artificial Intelligence, Augmented Reality and other technologies to network, connect and socialize over the web. Which books or films do you consider to be the top-10? I'm also looking for alternative reading beside the big authors such as William Gibson or Neal Stephenson.

Hope someone likes to help!

Me myself, i just finished Simulacron-3, great idea long before Matrix...

thanks so far, i had necromancer already on the map, as well as snow crash (stephenson) and Otherland (Tad Williams). A month ago a read "Der Birkenwald" of the german author Kai-Michael Böttcher, also nice one about a guy who coincidentally finds out he's living in a VR...

But it doesn't have to be so close to the topic of VR - total immersion, actually i'm looking for alternative cyberspace ideas for a future study in sociology.

Halting State by Charles Stross and The Lifecycle of Software Objects by Ted Chiang are both newer takes on augmented reality. I enjoyed them both a lot. Oh and Ready Player One by Ernest Cline takes place almost entirely in the OASIS, a virtual reality environment of the future. Hope that helps!

There have definitely been a lot of postings that i will have to put on my reading list. But let's perhaps widen the subject: What about Movies and Computergames? In general everything which deals with the ideal of simulation, VR, AR and possibly upcoming innovations in cyberspace.